GradShare is an online graduate student community administered by ProQuest, which “offers guidance on the full breadth of the graduate experience, such as dissertation topic selection, grants, financial aid, and work-life balance. Moreover, students can find and share advice on research, writing, publishing, job search, and other topics that help them become more effective in their work.”
Visit the website, click on ExploreGradShare and you will see there are 239 active members of the Life Sciences community already. Within the Life Sciences area there’s information on all of the above and more. The site does seem to be a little more US focussed, but there’s still a wealth of useful material to be accessed via this resource.